JP3380166B2 - Stool footrest device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to be mounted on a stool of a railway vehicle, an aircraft, etc., and is provided on the lower back side of these stools, and a seated occupant disposed behind the stools separately. The present invention relates to a footrest device for a stool that is used by placing a foot on it.

[0002]

2. Description of the Related Art Conventionally, as this type of stool for sitting, a device shown in FIG. 5 has been known. That is, stool 1
A pair of rearwardly extending support arms 2 are movably supported on the lower rear side of the rear portion, and a rear occupant can put his / her foot between the swinging ends of the respective support arms 2, and the base end of the footrest plate 3 is supported. Both ends of the part are rotatably supported.

In such a footrest device for sitting, when the supporting arm 2 is tilted so as to extend rearward, the footrest plate 3
Is selected between a first state (P1 in FIG. 5) in which the tip portion faces the base end side of the support arm 2 and a second state (P2 in FIG. 5) in which the tip portion extends and extends rearward. It is configured so that it can be held.

The back seated person can use the footrest plate 3 in a state of being held in the first state or the second state, depending on his / her convenience. When the footrest plate 3 is not used, the support arm 2 may be erected so as to extend upward while the footrest plate 3 is held in the first state, as shown by the two-dot chain line in FIG.

[0005]

However, in the above-described conventional footrest device for sitting, the footrest plate 3 pivotally supported by the swing end of the support arm 2 has the above-mentioned first state and second state. Can only be held in two positions. Therefore, there is a very narrow range of choices for a posture in which a person can put his / her feet on and relax, and an improvement for realizing a more comfortable sitting comfort has been desired.

In particular, when the seated person has a large body, there is no problem in using the footrest plate 3, but when the body is small, the footrest plate 3 is used.
Even if you want to use the footrest plate 2 in the first state, the foot may not reach the footrest plate 3 in the first state, and the footrest plate 2 can only be used in the second state. It was a problem because

The present invention has been made by paying attention to the problems of the prior art as described above, and has a simple structure.
It is possible to expand the variation of the position where the foot is put on and used, which allows the seated person to rest the foot in a more comfortable posture, and the optimal usability for seated people of various physiques. It is an object of the present invention to provide a footrest device for a stool capable of realizing the above.

[0008]

The gist of the present invention for achieving the above-mentioned object lies in the following respective items. [1] The stool (1) is provided on the lower rear side of the stool (1).
In a stool for a stool (10), which is separately placed behind the stool and is used by a seated person on the stool (1), a support arm (11) is provided upward on the lower rear side of the stool (1). The supporting arm is supported so as to be upright and retractable between a storage position that extends and a use position that extends rearward. (1
1) is rotatably supported in a first state in which the distal end portion (22) faces the base end side and a second state in which the tip end portion (22) extends rearward from the swinging end (13) of the support arm (11). Arm (11)
Further, an auxiliary arm (30) is supported on the swing end (13) side so as to be swingable in the front-rear direction, and an auxiliary footrest (34) is provided at the swing end (13) of the auxiliary arm (30). A footrest device (10) for sitting, characterized by being formed.

[2] When the support arm (11) is in the storage position or the use position, the auxiliary footrest (34) faces the base end side of the support arm (11). The normal position adjacent to the support arm (11) in the open state and the support arm (11) in the use position,
The auxiliary footrest (34) is located above the footrest plate (20) in the second state and above the footrest plate (2) in the first state.
[0] The sitting device for a stool (10) according to [1], characterized in that it is configured to be held at an extended position where the inclination angle is substantially the same as that in (0).

[3] The supporting arm (11) is engaged with both the front and back sides of both side edges of the footrest plate (20), and the footrest plate (20) is brought into the first state and the second state. And a stopper (16) for holding the stopper and the stopper (16).
[1] or [2], wherein the auxiliary arm (30) is set to be held in the extended position by
A footrest device (10) for a stool as described.

[4] The support arm (11) is provided with a stopper (1) for holding the auxiliary arm (30) in a normal position.
7) The footrest device (10) for sitting according to [1], [2] or [3], characterized in that it is provided.

[5] The sitting device (10) for sitting according to [3] or [4], characterized in that the stoppers (16, 17) are formed of an elastic material.

Next, the operation based on the above-mentioned solving means will be described. According to the sitting device for a stool (10) described in [1], when the supporting arm (11) is held in a use position extending rearward, the supporting plate between the swinging ends (13) of the supporting arm (11). (20)
In a first state in which the tip end (22) faces the base end side of the support arm (11), and the tip end (22) supports the support arm (1).
It can be used by selectively supporting it in the second state in which it is deployed rearward from the swinging end (13) of 1).

Further, the swinging end (1) of the supporting arm (11) is
By swinging the auxiliary arm (30) supported on the 3) side in the front-back direction, the swing end (13) of the auxiliary arm (30) is
The auxiliary footrest (34) can be held at a position different from the two supporting positions of the footrest plate (20) in the first and second states. Therefore, the range of positions in which the user can hang on his / her feet can be widened, and the seated person can appropriately select and use a more comfortable posture.

According to the footrest device (10) for sitting as described in [2], when the auxiliary footrest (34) is not used, the auxiliary footrest (34) is adjacent to the support arm (11). It can be held in the normal position. In this state, the auxiliary arm (30) and the auxiliary footrest (34) do not hinder the rotation of the footrest plate (20), and the support arm (11) is erected in the storage position extending upward. When it is made, it can be folded compactly.

On the other hand, when the auxiliary footrest (34) is used, the auxiliary arm (30) is swung to rotate the auxiliary footrest (34).
Above the footrest plate (20) in the second state,
The footrest plate (20) in the first state can be held at the extended position where the inclination angle is substantially the same. At such a position of the auxiliary footrest (34), even if the seated person is small, the footrest plate (20) in the first state can be used even if it is desired to use the footrest plate (20) at the angle of the first state. When the foot is not sufficiently accessible to 20), the occupant can rest the foot on the auxiliary footrest (34) held at a closer position at a desired angle.

According to the footrest device (10) for sitting as described in [3], the stopper (1) provided on the support arm (11) is provided.
6), the footrest plate (20) can be held in the first state and the second state, and further, the auxiliary arm (30) can be held in the extended position by the stopper (16). Therefore, the number of parts and the number of assembling steps can be reduced.

According to the footrest device (10) for sitting as described in [4], the supporting arm (11) is provided with the auxiliary arm (30).
Since the stopper (17) for holding the
The auxiliary arm (30) is prevented from excessive rotation, so that the auxiliary arm (30) and the auxiliary footrest (34) are supported by the supporting arm (1).
1) It can be surely held in a compact state that is housed between.

According to the footrest device (10) for sitting as described in [5], since the stoppers (16, 17) are made of an elastic material, the footrest plate (20) and the auxiliary arm (30) are engaged. It is possible to mitigate the impact at the time of hitting and suppress the generation of collision noise.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment of the present invention. Seating device 1 for sitting according to the present embodiment
Reference numeral 0 denotes an auxiliary device which is provided on the lower rear side of the stool 1 equipped in a vehicle or the like, and which is seated separately by a seated occupant (not shown) behind the stool 1. Stool 1
Is a seat portion 1a installed on the floor via a pedestal 5.
And a backrest portion 1b supported at its rear end so that the tilting angle can be adjusted.

As shown in FIG. 1, a leg rest device 10 for sitting down
Is a pair of support arms 11, 11 supported on the lower rear side of the stool 1 so as to be able to be erected, and a swing end 13 of each support arm 11.
A footrest plate 20 rotatably supported in between, and each support arm 1
It has a pair of auxiliary arms 30 and 30 oscillatably supported on the side of the oscillating end 13. An auxiliary footrest 34 is integrally fixed between the swing ends 32 of each auxiliary arm 30.

The pair of support arms 11, 11 are supported at their base ends 12 side in a vertically rotatable manner with respect to a mounting bracket 6 fixed to the rear portion of the pedestal 5. More specifically, each support arm 11 extends from the lower rear side of the stool 1 upward along the back surface of the backrest 1b (indicated by a two-dot chain line in FIG. 1), and in a rearward extending use position ( (Indicated by a solid line in FIG. 1), it is pivotally attached to the mounting bracket 6 via the rotary shaft 7.

As shown in FIGS. 2 and 3, a coil spring 8 is wound around the rotary shaft 7, and both ends of the coil spring 8 are fixed to the pedestal 5 side and the support arm 11 side, respectively. Is always urged to spring up to the stowed position. A lock mechanism is provided on the base end 12 side of the support arm 11 so as to resist the biasing force of the coil spring 8 and restrain the support arm 11 in the use position. The lock mechanism locks when the pedal 9 is depressed. It is configured to be released.

As shown in FIGS. 1, 2, and 3, the footrest plate 20
Has a base end portion 21 having the pair of support arms 11, 11
It is rotatably supported via a pivot 23 between the swing ends 13. When each of the supporting arms 11 is in the use position, the tip portion 22 of the footrest plate 20 has a base end 1 of the supporting arm 11.
It is supported so as to be held separately in a first state that faces the second side and a second state in which the tip portion 22 is deployed rearward.

The rocking end 13 side of each supporting arm 11 is engaged with both the front and back sides of both side edges of the footrest plate 20 to hold the footrest plate 20 in the first state and the second state. The stopper 16 is fixed integrally. The stopper 16 is formed of an elastic material such as rubber or soft resin. Further, as will be described later, the stopper 16 serves as an auxiliary arm 30.
It also plays the role of a stopper that keeps the car in a position that extends backward and upward.

As shown in FIGS. 1, 2 and 3, a pair of auxiliary arms 3 is further provided on the swinging end 13 side of each supporting arm 11.
0 and 30 are swingably supported in the front-rear direction. A base end 31 of each auxiliary arm 30 is pivotally supported by a pivot 33 along the inner surface of the support arm 11. Each auxiliary arm 3
An auxiliary footrest 34 is integrally provided between the zero swing ends 32.

More specifically, each auxiliary arm 30 has an auxiliary footrest 34 located between its swinging ends 32, and each auxiliary arm 11 has a corresponding support arm 11.
The normal position in which the support legs 11 are housed adjacent to each other in the state of facing the base end 12 side, and the auxiliary footrest 34 is the second position.
It is set so as to be held above the footrest plate 20 in the state and in the extended position where the inclination angle is substantially the same as that of the footrest plate 20 in the first state.

Each auxiliary arm 30 can swing the auxiliary footrest 34 to the normal position or the extended position when the support arm 11 is in the use position and the footrest plate 20 is in the second state. You can do it. Each auxiliary arm 30
Is set to be held in the extended position by a stopper 16 provided on the support arm 11. Further, as shown in FIG. 2, the one support arm 11 is provided with a stopper 17 that holds each auxiliary arm 30 at a normal position by engaging with the auxiliary footrest 34 that is swung forward. .

Next, the operation will be described. Seating device for stool 10
Each supporting arm 11 is constantly urged by the coil spring 8 in the direction of jumping up to the storage position indicated by the two-dot chain line in FIG. When using the footrest plate 20, first, each supporting arm 11 is swung so as to be pushed down to the use position shown by the solid line in FIG. 1 against the biasing force of the coil spring 8.
Each support arm 11 can be restrained in a use position by a lock mechanism provided on the base end 12 side thereof.

When each of the supporting arms 11 is in the use position extending rearward, the footrest plate 20 supported on the swinging end 13 thereof.
Can be selectively held in the first state indicated by P1 in FIG. 4 and the second state indicated by P2 in FIG. When the footrest plate 20 is rotated to the first state, both side edges are engaged with the stopper 16 from the upper side and are held at the position by its own weight.

On the other hand, when the footrest plate 20 is rotated to the second state, both end edges of the base end portion 21 of the footrest plate 20 are engaged with the stopper 16 from the lower side, and are supported at that position by its own weight. In this way, the footrest plate 20 is securely held in each position by the stopper 16. In the present embodiment, since the stopper 16 is formed of an elastic material, the impact when the footrest plate 20 is engaged can be mitigated, and the collision noise can be suppressed.

Apart from the footrest plate 20, each supporting arm 1
By swinging the pair of auxiliary arms 30 supported by 1, the auxiliary footrests 3 between the swinging ends 32 of the respective auxiliary arms 30.
4 can be held at a position different from the two supporting positions of the footrest plate 20 in the first and second states. In detail, each support arm 11 is in the use position and the footboard 2
When 0 is in the second state, each auxiliary arm 30 can be swung rearward from the normal position housed between the support arms 11.

When each auxiliary arm 30 swings rearward, its base end 31 side is held by its own weight at the extended position engaged with the stopper 16. In such an extended position, the auxiliary footrests 34 between the swinging ends 32 of the respective auxiliary arms 30 have an inclination angle substantially the same as the footrest plate 20 above the footrest plate 20 in the second state. Retained. Therefore, the position where the user can hang on his / her feet becomes three modes, and the variations are widened, and the seated person can appropriately select and use a more comfortable posture.

In particular, the auxiliary footrest 34 when the auxiliary arm 30 is held at the extended position can cope with the case where the seated person is small in size. That is, in FIG. 4, even when it is desired to use the footrest plate 20 in the angle of the first state, when the foot does not reach the footrest plate in the first state sufficiently, the seated person is closer to the seated person. The foot can be placed at a desired angle on the auxiliary footrest 34 that is held in the fixed position.

When the leg rest device 10 for sitting is not used, each auxiliary arm 30 is first swung forward so that it is held by its own weight in the normal position for engaging the stopper 17. Here, the auxiliary arms 30 and the auxiliary footrests 34 are compactly housed between the support arms 11. Next, foot plate 2
It is sufficient to hold 0 in the first state and then depress the pedal 9. Then, the locked state of the lock mechanism for restraining the support arm 11 in the use position is released, and the support arm 11 is springed up by the biasing force of the coil spring 8 to the storage position extending upward, and is stored so as not to be an obstacle.

In addition, in the leg rest apparatus 10 for sitting according to the present embodiment, the auxiliary arm 30 is held in the extended position by the stopper 16 that holds the foot rest plate 20 in the first state and the second state. Therefore, it is possible to reduce the number of parts and the number of assembling steps. Also, the leg rest device 10 for sitting
Can relatively easily be manufactured by modifying a part of the flip-up structure similar to the conventional structure.

The leg rest device for sitting according to the present invention is not limited to the configuration specifically shown in the above-mentioned embodiment. For example, in the above-described embodiment, the auxiliary footrest 34 is fixedly provided between the swinging ends 32 of the pair of auxiliary arms 30, but the auxiliary footrest 34 is further configured to rotate with respect to the swinging ends 32. May be. Further, the auxiliary arm 30 and the auxiliary footrest 34 may be configured to be supported at a plurality of usable tilt angles.

In the above embodiment, the pair of support arms 11 sandwiches the footrest plate 30. However, the present invention is not limited to this, and only one support arm is provided. The foot plate is arranged so as to sandwich
It goes without saying that the configuration may be "T-shaped". In this case, only one auxiliary arm 30 is pivotally supported so as to contact one side of the support arm 11, or a recess is provided in the support arm 11 and the auxiliary arm 3 is provided in this recess.
It may be pivoted so that 0 can be stored.

[0039]

According to the stool for a stool according to the present invention,
Separately from the two holding positions of the footrest plate supported between the swinging ends of the pair of supporting arms, the pair of auxiliary arms supported by the supporting arms are swung so as to move between the swinging ends of the auxiliary arms. Since a certain auxiliary footrest can be held at a position different from that of the footrest plate, a variety of positions where the foot can be used can be widened, and the seated person appropriately selects and uses a more comfortable posture. be able to.

[Brief description of drawings]

FIG. 1 is a side view showing a footrest device for sitting according to an embodiment of the present invention.

FIG. 2 is a plan view showing a footrest device for sitting according to an embodiment of the present invention.

FIG. 3 is a front view showing a leg rest device for sitting according to an embodiment of the present invention.

FIG. 4 is a side view for explaining the operation of the leg rest apparatus for sitting according to the embodiment of the present invention.

FIG. 5 is a side view showing a conventional footrest device.

[Explanation of symbols]

1 ... sit 1a ... seat 1b ... Backrest 5 ... Pedestal 6 ... Mounting bracket 7 ... Rotary axis 8 ... Coil spring 9 ... Pedal 10 ... Stool for stool 11 ... Support arm 12 ... Base 13 ... rocking end 16 ... Stopper 17 ... Stopper 20 ... foot board 21 ... Base end 22 ... Tip 23 ... Axis 30 ... Auxiliary arm 31 ... Base end 32 ... rocking end 33 ... Axis 34 ... Auxiliary footrest

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Claims (5)

(57) [Claims] 1. A stool for a stool that is provided on the lower side of a rear part of a stool and that is separately placed behind the stool to be used by a seated person on the stool. Is supported in a retracted position extending upward and in a use position extending rearward, and a footrest plate is provided at a swinging end of the supporting arm, and a tip end portion thereof faces a base end side of the supporting arm. And a second state in which the tip portion extends rearward from the swinging end of the supporting arm so that the supporting arm can swing further in the front-rear direction on the swinging end side of the supporting arm. A footrest device for a stool, wherein the footrest device is supported and an auxiliary footrest is provided at a swing end of the auxiliary arm. 2. The normal position of the auxiliary arm, which is adjacent to the support arm with the auxiliary foot facing the base end side of the support arm when the support arm is in the storage position or the use position, An extended position in which the auxiliary footrest has an inclination angle substantially the same as that of the footrest plate in the first state above the footrest plate in the second state when the support arm is in the use position. The footrest device for a stool according to claim 1, wherein the footrest device is adapted to be held at the position. 3. The support arm is provided with stoppers that engage with both front and back sides of both side edges of the footrest plate and hold the footrest plate in the first state and the second state, respectively. 3. The footrest device for a stool according to claim 1, wherein the auxiliary arm is set to be held in the extended position. 4. The footrest device for a stool according to claim 1, wherein the support arm is provided with a stopper for holding the auxiliary arm in a normal position. 5. The footrest device for a stool according to claim 3, wherein the stopper is made of an elastic material.